/*
 * Copyright 2019 LinkedIn Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package azkaban.executor;


public interface IRefreshable<T> {

  /**
   * Use the source Object to refresh the Object
   * @param source source Object
   * @return the refreshed Object
   */
  T refresh(T source);

  /**
   * Clone Object
   * @return new instance
   */
  T clone();

  /**
   * Number of Elements in Object
   * @return number of elements
   */
  int elementCount();
}
